Remember to keep in mind that OG is the result of feminized seeds making more feminized seeds so some male flowers should be expected. S1s are just a selfing of a clone only so it doesn't really reflect Dr.GT as much as the strain. Racerboy grew some of those and said they were hella dank and my OG18 is super dank too.
No, there's a hermi somewhere. I took my PE 9 weeks but I could see some people taking it 10 based on the looks. I also had a few late flower nanners I noticed when I trimmed. Since your seeds are just starting to form, the nanners probably popped out around week 9 like mine. It's not that uncommon really when plants go past their peak.